Axel sjogeen



A. SJOGRPN. MINING PUMP.

Patented sept. so, 1884.

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N. PETERS. mlb-MWL Walhinlon. D. C

iINiTED STATES PATENT @Erica AXEL sJoGnEn, OE DENVER, COLORADO.

MINING-PUMP.

SPECIFICATION forming part of Letters Patent No. 305,972, datedSeptember 30, 1884.

y Application filed May 9, 1883. (No model.)

T 0 @ZZ whom, 12b may concern.-

Bc it known that I, AXEL SJOGEEN, a citizen of Sweden, and a resident ofDenver, in

the county of Arapahoe and State of Colorado, have invented certain newand useful Improvements in Mining-Pumps, of which the following is aspeciiication.

My invention relates to pumping apparatus for raising water from greatdepths, and thus specially applicable for pum ping water out of mines.

rIhe invention comprises an improved construction of a pump to be placedat the bottom of a shaft or well of a mine, and improved means foroperating the samefby hydraulic pressure) from a steam-pump or othermotor above ground without the use of long wooden timbers to formworking connection between the motor and the lower pump, and enablingthe transmission of the power into any bends, angles, or horizontalpassages connected with the shaft without the use of any expensivecrankwheels, such as are now generally used in connection with such longwooden timbers, together with the so-called Cornish pump.77

The obj ect to be obtained is not only cheapness and convenience inmanipulation, saving of space and of labor in keeping old movable partsin working order, but also the saving of a good deal of power which inpumps as heretofore constructed is caused by friction in the guides,&c., along the wooden means of transmission.

In the accompanying drawings, Figure 1 represents a longitudinalvertical section of a miningpump constructed according to -my presentinvention, and intended to be used near the bottom of a mine. Fig. 2 isa vertical central cross-section of the same as seen in thedirection ofthe arrow 1 in Fig. l. Fig. 3 is a horizontal detail section taken onthe line y y of Fig. 2. Fig. 4 is a general view illustrating thearrangement of the motor above ground and the pump at the bottom of themine wit-h the operating-pipe and the discharge-pipe.

The pump has one central cylinder, A, connecting with two lateralsmaller cylinders, B

C, the said three cylinders being preferably arranged in the same axialline.

In the central cylinder, A, is iitted a tightworking piston, a, which isformed in one piece with two lateral hollow plungers, b c, which latterare provided around their outer ends with packing-rings b c, by whichthey are arranged `to work tightly in the smaller lateral cylinders, BC, respectively. The said cylinders are provided with air-bells L M, andare provided at their extreme ends with suitable valve-chests D?,integrally cast with the cylinders, and containing the ordinary sets ofpuppet-valves D E and D E', for regulating a constant supply of water,as in ordinary double-acting pumps. The said valve-chests are connectedby pipes d e to a common pipe, F, by means of the three-way casting F',the lower end of which also connects with a valvechest, G, of the pump,and which pipe F thence leads up through the shaft to discharge thewater from the bottom of the mine at any suitable place above theground, as shown in Fig. 4.

` The inlets to the valve-chests at the end vof the lateral cylinders BC are preferably connected by separate pipes to one common suction-pipe,S, as indicated bythe dotted lines in Fig. 1.

The force for working the piston a in the cylinder A, for operating theplungers b c, is obtained by water led through a pipe, H, by the motivepower ofasteam-pump, H, to and by means ot'` a channel, h., formed inthe casting of the valve-chest G, the ends of the said channel enteringthe enlarged ends g of the said cylindrical valve-chest G, as shown inFigs. l and 3.

The pump-operating valve consists simply of a rod, I, having packedpistons z' t" fitted to work in the valve-chest G between theinletopenings of the channel 71., the said rod I extending laterallybeyond t-he entire length of the valve-cylinder G and its enlargement g,and being provided around its extreme ends with packing-rings J J',working tightly in axial cylindrical extensions K K of the valve` chestG. From the ends of the said tubular extensions K K little channels 75kare formed in the castings, said channels leading into theplunger-cylinders B C near their junction with the central cylinder, A.

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That portion of the valve-chest G in which the )istons t' t" work isconnected with the cvlinder A by ordinary ports or channels, fj", in themanner usual in steam-pumps.

The operation is as follows, (referring to Fig. 1:) rlhe water from thepump H above the ground enters by means of the passages 7L and f (asindicated by arrows l.) into the cylinder A, moving the piston a andplungers Z) c in the direction of arrow From the opposite side ofthepiston a the water is discharged through the channel f as indicated byarrow 2, into the space of the cylinder G between the pistons i fi', andthence into the discharge-pipe F. The atmospheric pressure raises thewater through the suction-pipe S and the valve D in the direction ofthearrow 3 into the plunger-cylinder B, while at the same time the water isdischarged from the plunger-cylinder C through the valve E in thedirection of the arrow @t by way of the pipe c into the discharge-pipeF, the valves E and D being meanwhile closed. The water entering thecylinder A through the port f thence enters, by means of the smallchannel 7.1, into the end cylinder, K, in which the packingrings J uponthe valve-rod I work, thus keeping the full working pressure ofthe pumpupon that end of the valve-rod I, while at the other end, the pressureis less, being dependent upon the weight only of the water column in thedischarge-pipe F, which, by the port j", the forward space ofthecylinder A, and the channel 7a, communicates with the end cylinder, K',in which the packingrings J of the valve-rod I work, and consequentlyretain the valve I in the position shown in Fig. l; but when now thepackingring b', during the progress of the piston a., has passed thesmall channel 7.', communication will instantly be established betweenthe said small channel L and the suction-pipe, in which of course thepressure is less, being only due to vacuum. rlhe pressure upon the end Jof the valve I will then become greater, and consequently the valve willbe pushed in the opposite direction until the pistons t' t" have passedthe adjacent opening of the ports ff, respectively. The water from thepipe II will then be forced in through the port or channel f, forcingthe piston c in the opposite direction, and water remaining in thecylinder A from the previous stroke will be forced out, by way of thechannel f, into the dischargepipe F, the puppet-valves D E will beclosed, the valves D E will be open, and the water drawn into thecylinder C and expelled from the cylinder B, by way of the pipe d, intothe common discharge-pipe F. 'Vhen, on the return-stroke, thepacking-ring c has passed the channel 7;', (and thus the said channelwill be placed in communication with the suctionpipa) the pressure onthe end J of the valve I will predominate and force the valve to againresume the position shown in Fig. l, and so on continuously.

It will be seen that the pressure upon the lworking the piston bywater-pressure from a motor, II', above ground, through a pipe, II,

it is evident that the pump may be placed in any angular bend or passagein the mine without the expense and labor of timber connections, as thepipe H may easily be formed into any bends, and provided with extensionsto convey the power conveniently to'any place desired.

Having thus described inyinvcntion, I claim as new and desire to secureby Letters Patentl. In an isolated mining-pump consisting of thecylinders A B C, the cylinder A, provided with a valve-chest, G, havingenlarged ends g, connected by a lateral passage, h, which coinmunicateswith the pipe H, ports j" j", and three-way casting F', the saidcylinder and chest, with its ports and attachments, being formed out ofone piece of metal at one and the same operation, as set forth.

2. In a mining-pump designed to be operated by hydraulic or pneumaticpressure from a distant point, and in combination with the centralcylinder thereof. constructed substantially as set forth, theplunger-cylinders B C, each provided, respectively, with the tubularextensions K K, channels 7.' v, and valve-chests D, all integrallyformed, and constructed and arrangedto operate substantially as and forthe purposes described.

5. ln a mining-pump, in combination with the cylinders and chest, thebifurcated suctionpipe S and bifurcated discharge-pipe F,coinniunicating with said chest, both sets connected to the oppositeends of said cylinders, and having located between each set and thecylinder a puppet-valve, substantially as and for the purpose specified.

et. In a double-acting pump, in combination with the lateral cylinders BC and central cylinder, A, of larger diameter, the reciprocating tubularplungers b c, provided with a central portion, a, (peripherally groovedto receive packingrings,) all cast integral, said plungers having endcaps, and an annular groove between said caps and the ends of theplungers, to receive packing-rings, and constructed to work,respectively, in said cylinders, as and for the purpose set forth.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 25th day of April, 1883.

AXEL SJOGREN.

XVitnesses:

GnAnLns M. DAY, S. l?. SUNNnnGRnX,

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